Thanks for posting your query.
You are most likely suffering from acute viral gastroenteritis
As it is viral in nature, viral disease has life span of 3-4 days. Viral gastroenteritis may persist for 3-4 days before improvement.
You should consult with physician and should take proper treatment with good hydration.
You should also take proper antibiotics therapy (although your symptoms appear to be viral in origin but it is not 100% applicable so there may be possibility of bacterial in origin).
You should stop milk and all milk products.
You should also take ORS
Get well soon,
Dr. Mayank Bhargava